TY - CONF A1 - Ostermann, Markus T1 - Messunsicherheiten T2 - 1. Workshop "Isotopenverdünnungsanalyse mit ICP-MS" T2 - 1. Workshop "Isotopenverdünnungsanalyse mit ICP-MS" CY - Berlin, Germany DA - 2002-11-11 PY - 2002 AN - OPUS4-2986 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ostermann, Markus A1 - Berglund, M. A1 - Taylor, P. D. P. T1 - Measurement of the content of sulfur in gas oils using a high pressure asher, isotope dilution and thermal ionization mass spectrometry JF - Journal of analytical atomic spectrometry N2 - A new method has been developed for the measurement of sulfur in gas oils using a high pressure asher (HPA) for sample digestion. This, combined with a calibrated enriched isotopic reference material, and high precision mass spectrometry, makes it a powerful tool for an accurate and precise determination of the sulfur content in fossil fuels. The method described here was one of the methods used in the certification of the candidate reference materials BCR-104R, BCR-671 and BCR-672. Approximately 0.2 g of the gas oil samples were spiked with the spike isotopic reference material IRMM-646, which is enriched in 34S, and combusted in an HPA using nitric acid. The isotopes of sulfur were measured as arsenic monosulfides (AsS+) using a thermal ionization mass spectrometer equipped with a Faraday detector. The total uncertainty of the sulfur content (k = 2) is about 1%. The certified reference materials NIST SRM-2724b and NIST SRM-1619b and BCR-105 were used as part of the method validation work. The mass content of sulfur in BCR-104R was measured to be 1014 µg g-1, BCR-671 has 450 µg g-1 sulfur and BCR-672 shows a sulfur mass content of 201 µg g-1. The sulfur content of the candidate reference materials is homogeneous for the sample size used. KW - TIMS KW - Gas-oil KW - Reference materials KW - Isotope dilution KW - Sulfur PY - 2002 DO - https://doi.org/10.1039/B111140J SN - 0267-9477 SN - 1364-5544 VL - 17 IS - 10 SP - 1368 EP - 1372 PB - Royal Society of Chemistry CY - London AN - OPUS4-1214 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ostermann, Markus A1 - Kettisch, P. A1 - Becker, Dorit A1 - Vogl, Jochen T1 - Measurements of sulfur in oil using pressurised wet digestion technique in open vessels and isotope dilution mass spectrometry JF - Analytical and bioanalytical chemistry KW - Wet digestion KW - Open vessel digestion KW - Sulfur in oil KW - Reference materials KW - TIMS KW - IDMS PY - 2003 UR - http://www.springerlink.com/content/b7alk8lgly2v/?p=6237db8a9c28481d87e7b017e6474b73&pi=88 SN - 1618-2642 SN - 1618-2650 VL - 377 IS - 4 SP - 779 EP - 783 PB - Springer CY - Berlin AN - OPUS4-2738 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ostermann, Markus T1 - Hat die Ionenstrahlanalytik eine Zukunft? JF - Mitteilungsblatt / Gesellschaft Deutscher Chemiker, Fachgruppe Analytische Chemie KW - Ionenstrahlanalytik KW - Anwendungen von Ionenstrhalen KW - Oberflächenanalyse PY - 2006 SN - 0939-0065 IS - 1 SP - 25 EP - 26 PB - Gesellschaft Deutscher Chemiker CY - Frankfurt, M. AN - OPUS4-12270 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hearn, R. A1 - Berglund, M. A1 - Ostermann, Markus A1 - Pusticek, N. A1 - Taylor, P.D.P. T1 - A comparison of high accuracy isotope dilution techniques for the measurement of low level sulfur in gas oils JF - Analytica chimica acta N2 - A comparison of high accuracy methods for the analysis of total sulfur in gas oils by three metrology institutes is described. The work contains a comparison of three different aspects of the analysis: sample digestion, instrumental measurement and isotope dilution strategies. Thermal ionisation mass spectrometry (TIMS) in combination with high pressure asher (HPA) or Carius tube digestion has traditionally been used for such high accuracy analysis. However, this paper demonstrates that the faster, less laborious technique of ICP-MS in combination with microwave digestion is equally capable. Results from the comparison experiments show excellent agreement for fuel samples containing sulfur concentrations in the range 11–200 µg g-1. This excellent agreement across the different sample preparation, measurement and isotope dilution techniques has been exploited in the certification of two new diesel fuel reference materials. KW - Sulfur KW - Gas oil KW - Isotope dilution KW - ICP-MS KW - TIMS KW - Uncertainty PY - 2005 DO - https://doi.org/10.1016/j.aca.2004.10.070 SN - 0003-2670 SN - 1873-4324 SN - 0378-4304 VL - 532 IS - 1 SP - 55 EP - 60 PB - Elsevier CY - Amsterdam AN - OPUS4-7280 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ostermann, Markus A1 - Kühn, Andreas A1 - Bjeoumikhov, A. A1 - Wedell, R. T1 - Einsatz der Röntgenfluoreszenzanalyse in der Prozessanalytik JF - Technisches Messen N2 - Elementanalyse mit Röntgenfluoreszenzspektrometrie direkt am Materialstrom in Produktionsprozessen gewinnt zunehmend an Bedeutung. Die Röntgenfluoreszenzspektrometrie kann aufgrund der technischen Entwicklung mittlerweile ohne aufwändige Probenvorbereitung als aussagekräftige Informationsquelle für Stoffparameter im industriellen Prozess eingesetzt werden. Der Einsatz von online Röntgenfluoreszenzanalyse zahlt sich sowohl finanziell als auch zeitlich schnell aus, da sie sowohl für den ökonomischen Einsatz von Rohmaterialien, als auch z. B. im Materialrecycling zu gebrauchen ist. In diesem Beitrag werden vier unterschiedliche Einsatzmöglichkeiten beschrieben. N2 - Elemental analysis directly at the material stream of production processes using X-ray fluorescence spectrometry is gathering importance. Thanks to technical developments, X-ray fluorescence analysis can be used as information source in the elemental analysis of material in industrial processes without tedious sample preparation steps. The employment of online X-ray fluorescence analysis pays off both in financial as well in time aspects, since it can be used for the economic application of raw materials or e. g. for recycling. This paper describes four different applications of X-ray fluorescence spectroscopy. KW - Röntgenfluoreszenzspektrometrie KW - Stoffparameter KW - Materialanalyse KW - X-ray fluorescence spectrometry KW - Elemental analysis KW - Material analysis PY - 2011 DO - https://doi.org/10.1524/teme.2011.0162 SN - 0340-837X SN - 0178-2312 SN - 0171-8096 VL - 78 IS - 12 SP - 559 EP - 568 PB - Oldenbourg CY - München AN - OPUS4-24973 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ostermann, Markus A1 - Lück, Detlef A1 - Scharf, Holger T1 - Einsatz und Eignung von Handgeräten für die Bodenanalytik T2 - 19. Anwendertreffen Röntgenfluoreszenz und Funkenemissionsspektrometrie T2 - 19. Anwendertreffen Röntgenfluoreszenz und Funkenemissionsspektrometrie CY - Dortmund, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25559 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Ostermann, Markus T1 - Wie viel Acrylamid ist in Knäckebrot und wie viel Schwefel in Benzin? N2 - Vier neue Referenzmaterialien zum chemischen Nachweis von Acrylamid in Knäckebrot, Schwefel in Benzin, von polyzyklischen aromatischen Kohlenwasserstoffen und von Legierungen in Akkus stellt die BAM vor. Diese Referenzmaterialien sind durch die BAM zertifiziert und durch das Europäische Referenzmaterialien Programm ERM auf den Markt gebracht. KW - ERM KW - Schwefel KW - Acrylamid KW - Europäische Referenzmaterialien PY - 2008 UR - http://www.chemie.de/news/80032 SP - 1 PB - CHEMIE.DE Information Service CY - Berlin AN - OPUS4-17391 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ostermann, Markus A1 - Haase, Oskar A1 - Pfeifer, Jens A1 - Kipphardt, Heinrich T1 - A reliable and quick way to measure low levels of oxygen, nitrogen and carbon - Photon Activation combined with carrier gas hot extraction T2 - Trends in Sample Preparation ´07 T2 - Trends in Sample Preparation ´07 CY - Seggauberg, Austria DA - 2007-06-26 PY - 2007 AN - OPUS4-15691 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ostermann, Markus A1 - Haase, Oskar A1 - Kipphardt, Heinrich T1 - Measurements of C, N and O using RPAA - often a perfect alternative T2 - 21. Seminar Aktivierungsanlayse und Gammaspektrometrie (SAAGAS 21) T2 - 21. Seminar Aktivierungsanlayse und Gammaspektrometrie (SAAGAS 21) CY - Mainz, Germany DA - 2007-03-21 PY - 2007 AN - OPUS4-14679 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -